Satellite image of Semeru volcano on 4 Aug 2026Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 15000 ft (4600 m) altitude or flight level 150 and is moving at 05 kts in NE direction.The full report is as follows:FVAU02 at 13:11 UTC, 04/08/26 from ADRMVA ADVISORYDTG: 20260804/1320ZVAAC: DARWINVOLCANO: SEMERU 263300PSN: S0806 E11255AREA: INDONESIASOURCE ELEV: 3657M AMSLADVISORY NR: 2026/885INFO SOURCE: HIMAWARI-9, CVGHMERUPTION DETAILS: VA TO FL150 LAST REP 04/1203ZEST VA DTG: 04/1300ZEST VA CLD: SFC/FL150 S0808 E11252 - S0757 E11243 - S0743 E11300 - S0801 E11317 - S0809 E11257 MOV NE 05KTFCST VA CLD +6 HR: 04/1900Z SFC/FL150 S0808 E11252 - S0754 E11246 - S0743 E11259 - S0801 E11317 - S0809 E11259FCST VA CLD +12 HR: 05/0100Z SFC/FL150 S0809 E11252 - S0757 E11244 - S0748 E11253 - S0748 E11305 - S0801 E11317 - S0808 E11258FCST VA CLD +18 HR: 05/0700Z SFC/FL150 S0808 E11251 - S0804 E11249 - S0756 E11242 - S0746 E11252 - S0744 E11300 - S0759 E11313 - S0808 E11300RMK: VA NOT IDENTIFIABLE ON SATELLITE IMAGERY DUE TO MET CLOUD. VA HEIGHT AND FORECAST FROM HIMAWARI-9 SAT IMG, GROUND REPORTS AND MODEL GUIDANCE. LOW CONFIDENCE IN FCST DUE TO LIGHT AND VARIABLE WINDS.NXT ADVISORY: NO LATER THAN 20260804/1920Z=